Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11154939 | Hole drilling machine and method for drilling oval hole and inner-diameter-changing hole by means of hole drilling machine | Toshio Suzuki, Taketo Nakamura, Kazushige Morozumi, Tatsunori Sato, Yuya Masuda +1 more | 2021-10-26 |